Height adjustable desk



FIG. 1 is a front, right, and top perspective view of a height adjustable desk, showing my design.

FIG. 2 is a rear, left, and bottom perspective view thereof.

FIG. 3 is a left side elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a rear elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is an enlarged detailed view taken from the area labeled 9 in FIG. 1 showing a clasp; and,

FIG. 10 is an enlarged detailed view taken from the area labeled 10 in FIG. 2 showing a mechanical spring.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the height adjustable desk that form no part of the claimed design. 

CLAIM The ornamental design for a height adjustable desk, as shown and described. 